12 Aug
2005
12 Aug
'05
10:10 a.m.
Hi!
I am a total filter-tech newbie, and I need a filter with the following specifications, preferably using [czero~] and [rpole~] and their pd-builtins ilk:
- Lowpass filter
- -18 dB per octave rolloff
- Does not self-oscillate
- Bipolar (cutoff can be modulated positively or negatively)
- Adjustable cutoff, and resonance
Any tips? Anyone love designing filters in PD so much that they want to do it for me? Perhaps somebody can point me at a document to help me get started? I've already had a look at Miller's book, but before I spend so many nights revisiting long forgotten complex number mathematics I thought I'd check the list.
Best regards,
Chris.
chris@mccormick.cx http://mccormick.cx